{"instruction": "You are an expert in event argument extraction. Please extract event arguments and their roles from the input that conform to the schema definition, which already includes event trigger words. If an argument does not exist, return NAN or an empty dictionary. Please respond in the format of a JSON string.", "schema": [{"event_type": "adverse event", "arguments": ["Effect", "Combination.Drug", "Subject.Population", "Subject", "Treatment", "Subject.Gender", "Treatment.Drug", "Treatment.Route", "Subject.Age", "Treatment.Freq", "Treatment.Disorder", "Treatment.Dosage", "Subject.Disorder", "Treatment.Time_elapsed", "Subject.Race"]}], "input": "Vitiligo associated with alpha-interferon in a patient with chronic active hepatitis C."}
{"adverse event": [{"Effect": "Vitiligo", "Combination.Drug": "NAN", "Subject.Population": "NAN", "Subject": "a patient with chronic active hepatitis C.", "Treatment": "alpha-interferon", "Subject.Gender": "NAN", "Treatment.Drug": "alpha-interferon", "Treatment.Route": "NAN", "Subject.Age": "NAN", "Treatment.Freq": "NAN", "Treatment.Disorder": "chronic active hepatitis C.", "Treatment.Dosage": "NAN", "Subject.Disorder": "NAN", "Treatment.Time_elapsed": "NAN", "Subject.Race": "NAN"}]}